Disk sharpener



`une 16, 1925.

C. E. BAKER DISK SHARPENER Filed une Patented .Ig-une 1925.

. CORNELIUS n. Benn-R.,

orf'mnranona, iowa. f

DISK SHARPENER.

Application filed .Tune 26,

To all lwhom 'it may concern:

Be it known that I, CORNELIUS E. BAKER, a citiaenof the United States, and a resident of Indianola, Ain the county of Tarren andi State of Iowa, have invented a certain new and useful Disk Sharpener, of which the following is aV specification.

The purpose of my invention is to provide a disk sharpener of simple, durable and inexpensive construction.

More particularly, it is my purpose to provide a disk Sharpener of very cheap and simple construction, having a bar formed with a handle portion at one end and with an oii'setV portion at its other end having `a bifurcated part, and to mount on said bar a collar, and a set screw or other simple means for locking the collar at different heights on the bar, which collar isk provided with opposite spaced laterallyA extended arms projecting in the c, same direction as the offset portion, and to mount on said arms a pair of critters or Sharpeners, so that the sharpeners will engage one side of the disk, While the bar stands onthe other side thereof, `whereby the movement of the bar away from the disk tends to press the cutters into engagement with the disk for sharpening it.

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my disk Sharpener whereby the objects contemplated are attained, as hereinafter more fully set forth; pointed outin my claim, and illustrated in the accompanying drawings, in which:

Figure 1 is a Vperspective view of a disk Sharpener embodying my invention.

Figure 2 is an elevation of a portion of the disk, parts being shown in section, my Sharpener being illustrated mounted in position for use; and 1' Y Figure 3 is aisectional view of the sharpener, one end of the collarand other cutter being shown in plan view.

In the accompanyingdrawings, I have used the reference numeral IO to indicate generally a bar forming aV portion of my disk cutter and having at voneend the handle portion v1l, and at the other end bent@ at 12 terminating in a yoke 13, bifurcated for forming the spaced lingers 14. y

On the bar 10 `is adjustablyr mounted a coliarl, through which extends a set. screw 1924. Serial No. 722,574.

16 for locking the collar at different heights on the bar l0. v

The collar l5 has portions 15a projecting away `from the bar 10 on opposite sides thereofand terminating in'ofl'set arms 17 projectingaway from the lcollar in an opposite direction to the yoke 13.

Cutters 18 are detachably and adjustably secured to the arms 17 by means of bolts 19, whereby the cutters may be reversed or set at any desired angle.

In this connection, it should be mentioned that the bolts 19 have polygonal heads 2O and extend through holes 21 in the cutters y 18, and are screwed into threaded holes 22 .in the arms 17.

VIn Figure 2, I have shown ythe portions of the disk structure including an axle 23, disks Qa and spacer sleeves 25. The spacer sleeves 25 have shoulders 26 on each side of each disk 24E. 'y

y In the actual use of my improved disk Sharpener, the bar IO is placed in inclined position as shown adjacent to the concave side of' the disk with the fingers let receiving between them one of the spacing sleeve shoulders 26, as illustrated in Figure 2.

I find that the fingers 14 must be so arranged that the bar 10 may stand inclined from its upper end, into the concave of the disk, substantially as shown in Figure 2, to get the best results. i

The cutters 18 then project downwardly over the convexside of the disk, as illustrated, in position for sharpening the edge of the disk as at 27.

It will be seen that when the handle portion 11 of the bar 10, as shown in Figure 2, is pushed toward the right, the fingers 14 will engage the disk 24 and the cutters 18 y will be pressed against the edge of the disk to be sharpened.

The pressure may be varied according to the circumstances.

f The person sharpening the disk may walk behind it or kmay sit on the disk frame and manipulate the shapener.

Changes may be made in the details of.

Vthe structure and arrangement of my improved disk sharpener without distinguishing from the real spirit and purpose of my invention, and it is my intention to cover by the patent to be issued hereon, any such modifications or changes of structure, which may be embodied Wit-hin the scope of my claim.

I claim as my invention:

A disk Sharpener comprising a' bar hav- 5 ing at one end a handle portion and at the other end a slightly offset bfurcated p01- tion, u coll-ur sldubly mounted on said bar having spaced arms, oset on the same side of the bar as said offset portion, means for securing the collar at Various points on the 1O bar, and Sharpener devices bolted on said arms.

Des Moines, Iowa, June 19, 1924.

CORNELIUS E. BAKER. 

